物理
超导电性
二极管
凝聚态物理
动量(技术分析)
现象学模型
领域(数学)
自旋(空气动力学)
轨道(动力学)
订单(交换)
角动量
量子力学
理论物理学
量子电动力学
数学
财务
航空航天工程
纯数学
工程类
经济
热力学
作者
James Jun He,Yukio Tanaka,Naoto Nagaosa
标识
DOI:10.1088/1367-2630/ac6766
摘要
We study theoretically the superconductor diodes, where the magnitude of the critical current changes as the direction is reversed, in terms of a generalized Ginzburg-Landau model with the higher-order terms in the momentum of the order parameter. This theory is applied to Rashba spin-orbit coupled systems, where analytical relations between the nonreciprocal critical currents and the system parameters are achieved. Numerical calculations with mean-field theory are also obtained to study broader parameter regions. These results offer a rather general description and design principles of superconductor diodes.
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